Dear R users,
I have been using the zicounts package (verson 1.1.4) in R (version 2.4.1). I have been fitting zero inflated Poisson regressions to model the number of trips made by a household. Whilst I can get the best fit parameter set from zicounts, I can't get the package to return the fitted values for the model. I have attempted to calculate the fitted values from the optimal parameter set, but I'm not confident I got this correct. Can zicounts return fitted values for a ZIP model? If not, what cumulative distribution should be used for the zero inflated (ie z) coefficients? Will a cumulative standard normal distribution do the job? Many thanks in advance! Nic Surawski Statistician & Data Manager .................................................................... Veitch Lister Consulting Pty Ltd. Ground Floor, 80 Jephson St, PO Box 1054, Toowong, QLD 4066 AUSTRALIA Ph: +61 7 3870 4888 Fax: +61 7 3870 4446 Email: [EMAIL PROTECTED] <http://www.veitchlister.com.au/> Web: www.veitchlister.com.au <http://www.veitchlister.com.au/> .................................................................... Conditions Only an individual or entity who is intended to be a recipient of this e-mail may access or use the information contained in this e-mail or any of its attachments. Opinions contained in this e-mail or any of its attachments do not necessarily reflect the opinions of Veitch Lister Consulting P/L. The contents of this e-mail and any attachments are confidential and may be legally privileged and the subject of copyright. If you have received this e-mail in error, please notify Veitch Lister Consulting immediately and erase all copies of the e-mail and the attachments. Veitch Lister Consulting uses virus scanning software. However, it is not liable for viruses present in this e-mail or in any attachment. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
